Plate-valve



C. WAINWRIGHT. PLATE VALVE. APPLICATION EILED JUNE 21, I918.

1,334, 198. Patented Mar. 16, 1920.

2 SHEETS-SHEET l- L llllll WITNESSES: M/VEN T05 M in;

A TTOR/VE Y C. WAINWRIGHT.

PLATE VALVE. APPLICATION FILED sunzzl. 1913,

2 SHEETS-$HEET 2. fig. 5.

WITNESSES:

INVENTOH A TTUBWEV Patented Mar. 16, 1920.

plates,

UNITED STATES PATENT OFFICE.

CHARLES WAINWBIGHT, OF ERIE, PENNSYLVANIA.

PLATE-VALVE.

To all whom it may concern:

Be it known that 1, CHARLES Wamwniei-iT, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Plate-Valves, of which the following is a specification.

My present invention pertains to plate valves.

lit is essential in plate valves that the velocity otflow of gases be kept low through eduction ports controlled by plates and this notwithstanding the flow through induction ports may be of considerably higher vc locity. liligh velocity through discharge valves is objectionable because it imposes too much strain on the valves; and it is a desideratum or ideal to so construct a valve that no back-stop is needed.

The general object of my present invention, therefore, is the provision of a valve constru tion possessed of practically unlimited elasticity-i. 6., a construction that assures the desired low velocity through eduction ports and thereby obviates the necessity of employing back stops.

To the attainment of the foregoing the present invention consists in the built up construction of valve with all plates extending in the same direction except those at the end of the box plate valve when the same is used as an inlet valve for a compressing apparatus, as hereinafter described and definitely claimed.

In the accompanying drawings which are hereby made a part hereof:

Figure 1 is a vertical section showing one type of valve constructed in accordance with my present invention.

Fig. 2 is a plan View removed.

Fig. 3 is a view similar to Fig. 1 showing another type of valve embodying my invention.

Referring by numeral to the said drawings and more particularly to Figs. 1 and 2 thereof, 1 is a portion of apparatus, having an eduction port 2, and 3 is the cage of my novel valve construction. The said cage 3 is disposed in registration with the port, and in superimposed relation upon the wall about the port, and is provided with a horizontal lower series of vertically elongated ports 4, and is also provided with an upwardly extended portion 5 in which are of one of the resilient Specification of Letters Patent.

':ate11te(l Mar. 16, 1920.

Application filed June 21, 1918. Serial No. 241,272.

ports 6 in the form of notches, as illustrated. These ports 6 are in communication with ports 7 arranged in an upper horizontal series; the said ports 7 being formed be tween upright portions 8 of the cage which portions 8 serve to join the annular portion of the cage in which the ports 4; are formed with the interior member 9 of inverted truncated cone shape; the said member 9 extendin downwardly within the said annular f D ortion and being provided with an openworktop 10, as illustrated.

Grouped about the annular cage portion in which the ports a are formed are the resilient plates 11 comprised in the lower series of plates; there being one plate to each port t, and each plate being connected to the annular cage portion at its lower end by a screw 12 or other suitable means and normally bearin at its upper end against the outer side oi the annular portion above its respective port. At 13 are the plates of the upper horizontal series. These plates 18 control the ports 6, and there is one plate 13 to each port 6, and each plate 13 is connected by a screw 14 or other suitable means below its respective port and normally bears at its upper end against the portion of the cage above the port illustrated.

At 15 a closure in which bears a threaded bolt 16, equipped with a lock nut 17 and impinging at its lower end against the upper end 10 of the cage. It will be manifest from the foregoing that a plate valve characteriaed as described is posssessed of practically unlimited elasticity, and permits oi? such low velocity through eduction ports that the employment of back stops is rendered unnecessary.

In the embodiment shown in Fig. 3 the cage is shown as superimposed upon an openwork frame 18 and having a lower cross bar 19 joined by a screw 20 to the upper end of the frame. The said cage is provided with a lower series of ports 21, an upper series of ports 22, a lower series of plates 23 comple mentary to the ports 21 and an upper series ofplates 24. complementary to the ports 22, all. of the said plates being arranged eXteriorly of and individually connected to the cage as shown. It will also be noted by rel":- erence to Fig. 3 that the cage is provided with an upper wall 25, having vertically disposed ports 26 each of which is controlled by a plate .27 individually secured to the top of the cage. In this embodiment of the invention the plates 27 are adapted to serve as inlet valves for a compressor. 7

Having described my invention what I claim and desire to secure by Letters-Patent is:

1. In a plate valve, the combination of an annular cage with an induction port at one end and a plurality of exterior valve seats and ports extending therefrom to the interior of the cage and arranged one port to one valve seat, and a series of flexible plates surrounding the cage and eachconnected at one end thereto, and arranged one plate to each valve seat and the port c0m plementary thereto, the total net area of the said ports exceeding the area of the induction port. 7 g

In a plate valve, the combination of an annular cage with an induction port at one end and a plurality of sets of exterior valve seats and ports extending therefrom to the interior of the cage and arranged one port to'one valve seat and sets of flexible plates surrounding the cage and each connected at one end thereto and arranged one plate to each valve seat and the portcomplementary thereto, the total net area of the said ports exceeding the area of the induction port.

3. I11 a plate valve the combination of the cage having a series of ports in its side wall and also having ports in one end wall, a set of plates arranged exterior-1 of the side Wall of the cage and each opposite one of the ports in said side wall and connected adjacent to one end to said side wall, and plates opposed to and each connected adjacent to one end to the end wall of the cage and each arranged opposite one of the ports A in said end Wall.

4-. In a plate valve, the combination of a cage having a plurality of sets of ports in its side wall and also having an induction port at one end and a plurality of ports in v its opposite end, sets of flexible plates arranged exteriorly of the side wall of the cage and arranged one plate to one port and the seat complementary to the port, and

flexible plates opposed to and each connected adjacent to one end to the last-named end of the cage and each arranged opposite one of the ports in said wall to control said port alone.

In testimony whereof I afiix my signature. I 0

CHARLES IVAINWRIGHI. 

